It can be inferred from the passage that:




A.Jellyfish and starfish do not have brain.
B.The number of neurons in the cortex is about 15 – 33 billion, irrespective of age and gender.
C.The sponge has brain but not nervous system.
D.Neurons communicate with one another by targeting themselves to specific recipient cells.

I watch the news everyday because it's very ........... (inform)




A.informative
B.information
C.informatively
D.inform

After the explosion, only two people were left ................. (live)




A.life
B.lives
C.lively
D.alive

By this time next year I (save).................. $ 250.




A.will be saved
B.have saved
C.will have saved
D.have been saving

A.feat
B.great
C.seat
D.fear

He was exciting at the news she told him yesterday.




A.exciting
B.at
C.news
D.told

People say the Chinese invented gunpowder.




A.The Chinese is said to invent gunpowder.
B.The Chinese are said to have invented gunpowder.
C.The Chinese invented gunpowder.
D.It is said that the Chinese have invented gunpowder.

If you ______ a book, you have a brief look at it without reading or studying it seriously.




A.dip into
B.put away
C.pick up
D.put down

_____ difficult a test is given, that brilliant student succeeds in getting good scores.





A.Whatever
B.Whenever
C.Wherever
D.However

Mary _________ lazy preparing her lesson last night.




A.shouldn’t have been
B.should have been
C.shouldn’t be
D.should be